a 
CHAETOGNATHA. 
remained, showing that it had become detached during preservation or in transit. 
215 
Some of 
the best-preserved specimens have a bright yellow colour in formalin, while others are 
colourless. 
This species has been previously recorded from the Mediterranean, 
both sides of the Atlantic, Java and Japan. 
II. Genus Krohnia Langerhans. 
15. Krohnia pacifica Aida. 
T. Aida, Annot. Zool. Jap. Vol. 1. p. 19, 1897. 
Only two specimens of this species were obtained; one in the 
winter and one in the April collection. It is only 7 mm. in length, 
but the ovaries show it to be mature. In the specimen taken in 
April the latter had large eggs (text-fig. 40), pressed together as 
described above in Sagitta septata. The tail is a third of the whole 
length. Both tail-fin and lateral fin meet the vesiculae seminales, 
which are ovoid. The tactile prominences have very long bristles. 
Hooks 9, pointed, with very small end-pieces. Teeth 13, very long; 
the row of one side meets that of the other side. The eyes are very 
near together. 
There can be no doubt that this is the Krohnia pacifica described 
by Aida; the teeth are shghtly more numerous, and the green colour 
which he mentions is not visible in preserved specimens. He de- 
scribes the mouth as a transverse slit, but this appears to me to 
be due to a sort of lp overhanging the mouth anteriorly; the true 
mouth is as usual longitudinal. 
Previously described only from Japan. 
[NorE. ON SOME CHAETOGNATHA FROM SINGAPORE. 
I include here the description of a new species of Sagitta 
obtained by the late F. P. Bedford at Singapore. It was accom- 
panied by a few specimens of S. enflata and S. robusta. There was 
only one specimen, which is not fully mature; the condition of the 
ovaries however shows that it is not very young. 
Sagitta bedfordit nov. sp. 
Very small; an individual apparently nearing maturity, measures 
only 35 mm. Tail one-third of whole. Fins narrow, with rays 
springing from the base and placed unusually far apart. Corona 
ciliata imperfectly preserved, but lying both on head and trunk, and 
apparently short and pear-shaped. Body-wall thick, with epidermal 
thickening behind the head. Hooks 10, anterior teeth 2, posterior 2, 
all, especially the anterior ones, long, narrow and pointed, like those 
of S. magna. 
The number and shape of the teeth is sufficient to distinguish 
this species at once from all the other small species.] 
G. 


Fic. 40. Krohnia pacifica. A 
specimen taken in April, 
which has a number of ripe 
eggs on each side arranged 
with their shells in contact, 
giving the appearance of 
transverse septa. These 
eggs, as in Sagitta septata, 
are probably in the oviduct. 
28 
